Question

1. a large island in the pacific ocean supports isolated populations of two groups of frogs. the following observations of these frogs were recorded by scientists.

which observation best supports the inference that these frogs belong to the same species?
(a) are different in color
(b) excrete different products
(c) live in different, isolated habitats
(d) can interbreed and produce fertile offspring
a) a
b) b
c) c
d) d

Explanation:

To determine if two frog groups are the same species, the key criterion is reproductive compatibility (interbreeding to produce fertile offspring). Option D directly addresses this: if they can interbreed and have fertile offspring, they are the same species. Options A (color), B (excretory products), and C (habitat) do not define species.

Answer:

D. Can interbreed and produce fertile offspring